Subaru 2003 Impreza - Manual (Page 227)

IMPREZA(NA) A1850BE-A (ENGLISH)
Starting and operating
7-6
D Do not let fuel spill on the exterior surfaces
of the vehicle.
Fuels may cause paint damage, which is not
covered under the SUBARU Limited Warranty.
D Always use a genuine SUBARU fuel filler
cap. If you use the wrong cap, it may not fit or
have proper venting, and your fuel tank and
emission control system might be damaged.
State emission testing (U.S. only)
At state inspection time, remember to tell your
inspection or service station in advance not to
place your Subaru AWD vehicle on a two-wheel
dynamometer. Otherwise, serious transmission
damage will result.
Some states have started using dynamometers in
their state inspection programs in order to meet their
obligation under federal law to implement stricter
vehicle emission standards to reduce air pollution
from cars. A dynamometer is a treadmill or roller-like
testing device that allows your car’s wheels to turn
while the car remains in one place. Depending on
the severity of a state’s air pollution problems, the
states must adopt either a “basic” or “enhanced”
vehicle emission inspection test. Normally, a portion
of the basic emission test consists of an emission
inspector inserting an analyzer probe into the
exhaust pipe of an idling vehicle for a short period
of time. States with more severe air pollution prob-
lems are required to adopt an enhanced vehicle
emission test. This test simulates actual driving
conditions on a dynamometer and permits more
accurate measurement of tailpipe emitted pollution
than the basic emission test.
The U.S. Environmental Protection Agency (EPA)